Sum of Products Calculator

Your details

The first list of numbers. Separate values with commas. Decimals and negatives are supported.
The second list of numbers, same length as Series A. Each value is multiplied with the corresponding value in Series A.
Choose how to interpret the two series. The main SOP result is the same for all modes; the extra output changes.
Sum of Products
100

The total of all a_i x b_i products

Number of Pairs4
Sum of Series A20
Sum of Series B16
Mean of Series A5
Mean of Series B4
Length checkBoth series have 4 elements
Sum A20
Sum B16
Sum of Products100

Sum of products: 100

  • The sum of products of the two series is 100, calculated from 4 pairs.
  • The mean of Series A is 5 and the mean of Series B is 4.
  • A positive sum of products indicates the values in the two series tend to move in the same direction.

Next stepTry switching to "Weighted average" mode if Series B holds weights, or "Covariance component" to explore how the series co-vary.

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